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Diagnosis of Low Back Pain and Sciatica
by Debra Wood, RN
Your doctor will ask about your symptoms and medical history. A physical exam will be done. Your back, hips, and legs will be tested for strength, flexibility, sensation, and reflexes. The diagnosis may be determined by the the results of the physical exam.
Blood and Urine Tests
Blood tests can be used to look for diseases, infections, or inflammation if they are suspected as an underlying cause. Complete blood counts are used to see if blood cell counts are in a normal range. Sedimentation rates can detect inflammation and be used as a diagnostic tool.
Urine tests check for urinary infection or blood in the urine.
Imaging tests are not generally required for low back pain and sciatica. They be done under certain circumstances. Examples include:
Some tests use contrast material to highlight structures so they are easier to see. Common tests include:
Acute low back pain. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T114958/Acute-low-back-pain. Updated October 25, 2017. Accessed December 27, 2017.
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Chou R, Qaseem A, Owens DK, et al. Diagnostic imaging for low back pain: advice for high value health care from the American College of Physicians. Ann Intern Med. 2011;154(3):181-189.
Chronic low back pain. EBSCO DynaMed Plus website. Available at: http://www.dynamed.... Updated June 30, 2017. Accessed December 27, 2017.
Low back pain. Ortho Info—American Academy of Orthopaedic Surgeons website. Available at: https://orthoinfo.aaos.org/en/diseases--conditions/low-back-pain. Updated December 2013. Accessed December 27, 2017.
Sciatica. Cleveland clinic website. Available at: https://my.clevelandclinic.org/health/diseases/12792-sciatica. Updated July 22, 2014. Accessed December 27, 2017.
Sciatica. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T115166/Sciatica. Updated May 8, 2017. Accessed December 27, 2017.
Last reviewed December 2017 by EBSCO Medical Review Board Michael Woods, MD, FAAP
Last Updated: 12/27/2017
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